Is usability testing helpful?

Professionals from an app development company Toronto state that usability testing is helpful to understand the way people use a product. It ensures that when a firm plans to release a product, a new feature in a product or a massive update, users from the target audience will first get to test the app to see whether it works or not. If users are able to navigate easily in an app and find value in it, then it's a good signal for both the company and its app.